Gear pump sliding bearings and rolling bearings related to the introduction of lubrication

[Asia Pump Network hearing] Gear pump internal sliding bearings and rolling bearings of the two pumps according to different structural characteristics of the appropriate choice, this will extend the life of the pump, of course, the price is also different. The following is a description of the gear pump sliding bearings and rolling bearings, easy to understand the difference between the two. I. Rolling bearing lubrication Roller bearing gear pump lubrication, and some use of high-pressure end face gap oil leakage lead to the bearing cavity, and some with the suction chamber connected to the low-pressure lubrication. Two. Lubrication of sliding bearings with bimetallic thin-walled bearings and bearing pressure lubrication structure with DU bearing structure, the current hole in the bearing plus straight groove or spiral groove structure. Gear oil pump sliding bearing and rolling bearing gear shaft by a long drive shaft and a short driven shaft composition, the gear sleeve and the shaft is integrated; gear involute cylindrical spur gear; number of teeth 14; gear shaft The material is high alloy tool steel. Sliding bearings at both ends of the short axis of a monolithic sliding bearings, lubrication of the bearing is the use of the melt itself transported lubrication: the inner diameter of each bearing open a certain width and depth of two longitudinal grooves and A circumferential groove about one-third of a week, one of the longitudinal grooves and one-third of the circumferential groove on the pump outlet side, and through a D8mm through-hole and outlet side of the high pressure melt communication; The other longitudinal groove is located on the pump inlet side and communicates with the low pressure melt on the inlet side through a D6mm through-hole. In this way, from a theoretical analysis, each bearing operation can form a lubrication channel, and through the outlet and the inlet side of the melt pressure differential melt into the journal clearance, thereby establishing a bearing lubrication film to prevent dry grinding so that the bearing and Shaft biting dead. Rolling bearing more advantages, such as resistance, static friction coefficient and dynamic friction coefficient difference is small, not easy to vibration. long life. However, it is noisy, requires clean environment and can not withstand impact and vibration. Plain bearings are used where it is not important or where work is required for a short time. Can be made of copper powder metallurgy or copper directly produced, simple structure, low noise, impact load capacity. Expand to read: Guangzhou Central Expo China Construction Water Show Industrial Internet (Xiamen) Technology Co., Ltd. Asia Pump Network Editor: Xiao Hai http://beng.liuti.cn/ (Service Hotline: 400-6030-811)